Individuals with SCI Control group ANOVA interactiona Main group effect or between- group differenceb  Main task effect or between- task differencec
Task #1 Task #2 Task #1 Task #2   Task #1 Task #2 SCI CTL
MDIST-RD (mm) 1.80 ± 1.00 3.12 ± 2.14 1.24 ± 1.14 1.65 ± 1.27   # ##
MDIST-AP (mm) 1.12 ± 0.59 2.33 ± 1.67 1.07 ± 1.09 1.35 ± 1.25       ##
MDIST-ML (mm) 1.18 ± 0.92 1.69 ± 1.35 0.45 ± 0.36 0.70 ± 0.35   ## #
RDIST-RD (mm) 2.10 ± 1.13 3.55 ± 2.40 1.52 ± 1.46 1.88 ± 1.48   # ##
RDIST-AP (mm) 1.40 ± 0.72 2.84 ± 2.02 1.38 ± 1.43 1.63 ± 1.47       ##
RDIST-ML (mm) 1.45 ± 1.07 2.02 ± 1.49 0.56 ± 0.44 0.86 ± 0.43   ## #
TOTEX-RD (mm) 120.67 ± 46.54 248.38 ± 96.36 147.08 ± 70.67 180.33 ± 64.71 ##   ** ***  
TOTEX-AP (mm) 80.36 ± 25.69 174.22 ±78.05 116.52 ± 56.42 126.16 ± 41.09 ###   * ***  
TOTEX-ML (mm) 72.00 ± 37.19 139.68 ± 60.54 66.42 ± 36.26 102.30 ± 43.29       ###
RANGE-RD (mm) 8.89 ± 4.62 14.70 ± 8.04 7.34 ± 6.78 8.18 ± 5.67 #   * *  
RANGE-AP (mm) 6.89 ± 3.63 13.02 ± 7.36 7.10 ± 6.75 7.89 ± 5.69 #     *  
RANGE-ML (mm) 6.53 ± 4.33 9.43 ± 5.37 3.26 ± 2.27 4.90 ± 3.41   ## ##
MVELO-RD (mm/s) 4.02 ± 1.55 8.29 ± 3.21 4.90 ± 2.36 6.01 ± 2.16 ##   ** ***  
MVELO-AP (mm/s) 2.68 ± 0.86 5.82 ± 2.60 3.88 ± 1.88 4.21 ± 1.37 ###   * ***  
MVELO-ML (mm/s) 2.40 ± 1.24 4.66 ± 2.02 2.21 ± 1.21 3.41 ± 1.44       ###
AREA-CC (mm2) 49.77 ± 49.15 154.21 ± 223.42 42.32 ± 92.04 49.37 ± 106.80          
AREA-CE (mm2) 29.86 ± 25.09 103.83 ± 143.20 19.64 ± 35.26 28.74±43.52       #
AREA-SW (mm2/s) 2.56 ± 2.10 7.89 ± 5.52 2.18 ± 3.02 3.59 ± 5.08 #   ** **  
MFREQ-RD (Hz) 0.43 ± 0.20 0.53 ± 0.20 0.82 ± 0.42 0.68 ± 0.22   ##    
MFREQ-AP (Hz) 0.55 ± 0.34 0.56 ± 0.22 0.90 ± 0.52 0.71 ± 0.29   #    
MFREQ-ML (Hz) 0.46 ± 0.24 0.66 ± 0.30 1.07 ± 0.39 0.91 ± 0.27 # ***      
FD-RD 1.39 ± 0.09 1.45 ± 0.09 1.50 ± 0.12 1.51 ± 0.08   ##    
FD-CC 1.48 ± 0.11 1.54 ± 0.12 1.64 ± 0.16 1.62 ± 0.10   ##    
FD-CE 1.53 ± 0.11 1.58 ± 0.11 1.71 ± 0.15 1.65 ± 0.08 # ***      
T POWER-RD 13.71 ± 6.99 13.96 ± 5.09 18.37 ± 6.28 14.76 ± 3.51          
T POWER–AP 31.97 ± 21.45 33.56 ± 19.65 45.41 ± 25.63 37.25 ± 19.41          
TPOWER-ML 35.21 ± 20.56 40.18 ± 21.74 58.52 ± 21.04 48.64 ± 18.30   ##    
50%-RD (Hz) 0.33 ± 0.08 0.56 ± 0.25 0.81 ± 0.46 0.61 ± 0.24 ## ***   **  
50%-AP (Hz) 0.41 ± 0.21 0.55±0.29 0.69 ± 0.41 0.49 ± 0.24 # *      
50%-ML (Hz) 0.42 ± 0.29 0.51 ± 0.23 0.78 ± 0.19 0.70 ± 0.27   ###    
95%-RD (Hz) 1.98 ± 0.55 2.28 ± 0.65 2.88 ± 0.87 2.88 ± 0.42   ###    
95%-AP (Hz) 2.02 ± 0.67 2.02 ± 0.60 2.57 ± 0.79 2.58 ± 0.35   ##    
95%-ML (Hz) 1.54 ± 0.51 2.05 ± 0.38 2.68 ± 0.45 2.53 ± 0.37 ### *** ** ***  
CFREQ-RD (Hz) 0.89 ± 0.21 1.08 ± 0.28 1.40 ± 0.47 1.33 ± 0.24   ###    
CFREQ-AP (Hz) 0.97±0.29 0.99 ± 0.30 1.27 ± 0.42 1.16 ± 0.22   ###    
CFREQ-ML (Hz) 0.80 ± 0.25 1.01 ± 0.23 1.34 ± 0.28 1.28 ± 0.20 # *** *** **  
FREQD-RD 0.72 ± 0.04 0.67 ± 0.05 0.66 ± 0.07 0.68 ± 0.05 # **   *  
FREQD-AP 0.70 ± 0.05 0.66 ± 0.06 0.67 ± 0.05 0.69 ± 0.06 # *   *  
FREQD-ML 0.66 ± 0.09 0.66 ± 0.06 0.62 ± 0.04 0.62 ± 0.06   ###    
aANOVA interaction results. b Main group effect or t-tests between groups when ANOVA interaction was significant in the supported (Task #1) or unsupported sitting position (Task #2). c Main task effect or t-tests between tasks within each group when ANOVA interaction was significant. For interaction and main effect, #=p<0.05; ##=p ≤ 0.01; ###=p ≤ 0.001. For t-tests with Bonferroni adjustments, *=p<0.025;**=p≤0.01;***p≤0.001. SCI: individuals with SCI; CTL: control group.
Table 3: Mean ± standard deviations of COP measures and statistical results.
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